I saw those, too. But - can’t imagine that they take care of squirrels, raccoons, etc. It seems that those animals might be skittish at first . . . but get used to just about anything.
I tried very bright motion lights.
I tried moving things that made noise - pie plates, etc.
We finally built a cage with heavy deer netting and/or chicken wire.
I put out a trap (Havahart) and got 2 raccoons who are now vacationing a few miles from here. Next year there will be others and the trap will come out again.
Can you import a large hawk?
Our ‘resident’ hawk has really thinned out our squirrels. He’s a big one. And apparently eats a LOT.